UnicodeDecodeError when installing python-igraph

UnicodeDecodeError when installing python-igraph - python

I'm using python 2.7 on 64-bit Linux Mint 16 and I'm trying to install python-igraph. But when I run sudo pip install python-igraph I get the following log:
Downloading/unpacking python-igraph
Downloading python-igraph-0.7.1-1.tar.gz (375kB): 375kB downloaded
Running setup.py egg_info for package python-igraph
Installing collected packages: python-igraph
Running setup.py install for python-igraph
Build type: dynamic extension
Include path: /usr/include/igraph
Library path:
Linked dynamic libraries: igraph
Linked static libraries:
Extra compiler options:
Extra linker options:
building 'igraph._igraph' extension
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/igraph -I../../build/include -I../../include -I/usr/local/include/igraph -I/usr/include/igraph -I/usr/include/python2.7 -c src/igraphmodule.c -o build/temp.linux-x86_64-2.7/src/igraphmodule.o
In file included from src/igraphmodule.c:30:0:
src/convert.h:65:59: error: unknown type name ‘igraph_pagerank_algo_t’
int igraphmodule_PyObject_to_pagerank_algo_t(PyObject *o, igraph_pagerank_algo_t *result);
^
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
Complete output from command /usr/bin/python -c "import setuptools;__file__='/tmp/pip_build_root/python-igraph/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-akm3_O-record/install-record.txt --single-version-externally-managed:
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/igraph
copying igraph/formula.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/__init__.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/configuration.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/summary.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/layout.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/cut.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/datatypes.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/utils.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/clustering.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/statistics.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/matching.py -> build/lib.linux-x86_64-2.7/igraph
copying igraph/compat.py -> build/lib.linux-x86_64-2.7/igraph
creating build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/operators.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/isomorphism.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/__init__.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/colortests.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/conversion.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/homepage.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/attributes.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/vertexseq.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/structural.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/separators.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/atlas.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/layouts.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/rng.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/games.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/utils.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/iterators.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/edgeseq.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/indexing.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/spectral.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/cliques.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/flow.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/basic.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/generators.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/matching.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/foreign.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/bipartite.py -> build/lib.linux-x86_64-2.7/igraph/test
copying igraph/test/decomposition.py -> build/lib.linux-x86_64-2.7/igraph/test
creating build/lib.linux-x86_64-2.7/igraph/app
copying igraph/app/__init__.py -> build/lib.linux-x86_64-2.7/igraph/app
copying igraph/app/shell.py -> build/lib.linux-x86_64-2.7/igraph/app
creating build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/__init__.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/edge.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/shapes.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/coord.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/metamagic.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/utils.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/text.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/graph.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/colors.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/vertex.py -> build/lib.linux-x86_64-2.7/igraph/drawing
copying igraph/drawing/baseclasses.py -> build/lib.linux-x86_64-2.7/igraph/drawing
creating build/lib.linux-x86_64-2.7/igraph/remote
copying igraph/remote/__init__.py -> build/lib.linux-x86_64-2.7/igraph/remote
copying igraph/remote/nexus.py -> build/lib.linux-x86_64-2.7/igraph/remote
copying igraph/remote/gephi.py -> build/lib.linux-x86_64-2.7/igraph/remote
creating build/lib.linux-x86_64-2.7/igraph/vendor
copying igraph/vendor/__init__.py -> build/lib.linux-x86_64-2.7/igraph/vendor
copying igraph/vendor/texttable.py -> build/lib.linux-x86_64-2.7/igraph/vendor
running build_ext
Build type: dynamic extension
Include path: /usr/include/igraph
Library path:
Linked dynamic libraries: igraph
Linked static libraries:
Extra compiler options:
Extra linker options:
building 'igraph._igraph' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/src
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/igraph -I../../build/include -I../../include -I/usr/local/include/igraph -I/usr/include/igraph -I/usr/include/python2.7 -c src/igraphmodule.c -o build/temp.linux-x86_64-2.7/src/igraphmodule.o
In file included from src/igraphmodule.c:30:0:
src/convert.h:65:59: error: unknown type name ‘igraph_pagerank_algo_t’
int igraphmodule_PyObject_to_pagerank_algo_t(PyObject *o, igraph_pagerank_algo_t *result);
^
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Cleaning up...
Command /usr/bin/python -c "import setuptools;__file__='/tmp/pip_build_root/python-igraph/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-akm3_O-record/install-record.txt --single-version-externally-managed failed with error code 1 in /tmp/pip_build_root/python-igraph
Traceback (most recent call last):
File "/usr/bin/pip", line 9, in <module>
load_entry_point('pip==1.4.1', 'console_scripts', 'pip')()
File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 148, in main
return command.main(args[1:], options)
File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 169, in main
text = '\n'.join(complete_log)
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 50: ordinal not in range(128)
I previously installed libigraph0-dev. How can I install python-igraph in this case?

Does the version of libigraph0-dev match the version number of the Python interface? If the version of libigraph0-dev is not equal to 0.7.1, it will not be suitable for the version of python-igraph that you are trying to compile. In that case, it is better to remove libigraph0 and libigraph0-dev and run pip install python-igraph again; the setup script will then attempt to download and compile an appropriate version of the C core of igraph first.
I know that you have posted another question today in which you stated that pip install python-igraph (without having libigraph0-dev) does not work for you; try again anyway because the previous version of python-igraph had a bug that prevented it from downloading the right version of the C core, and I have fixed the bug just an hour ago.

download source code of igraph in C and install it using below code
./configure && make && sudo make install
then install python igraph using pip or from source

Related

ERROR: Failed building wheel for cytoolz when installing web3.py on macOS [duplicate]

This question already has an answer here:
Error on "pip install -U channels" command using for otree (Running setup.py bdist_wheel for twisted ... error)
(1 answer)
Closed 1 year ago.
while trying to do
pip install web3
I am always getting the following error
Building wheel for cytoolz (setup.py) ... error ERROR: Command
errored out with exit status 1: command:
/Library/Frameworks/Python.framework/Versions/3.10/bin/python3 -u -c
'import io, os, sys, setuptools, tokenize; sys.argv[0] =
'"'"'/private/var/folders/gb/5fvn1z1s689bzt7vbll5845c0000gn/T/pip-install-cxwpjegv/cytoolz_88244d2146254468892c582d0b9e33fa/setup.py'"'"';
file='"'"'/private/var/folders/gb/5fvn1z1s689bzt7vbll5845c0000gn/T/pip-install-cxwpjegv/cytoolz_88244d2146254468892c582d0b9e33fa/setup.py'"'"';f
= getattr(tokenize, '"'"'open'"'"', open)(file) if os.path.exists(file) else io.StringIO('"'"'from setuptools import
setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"',
'"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))'
bdist_wheel -d
/private/var/folders/gb/5fvn1z1s689bzt7vbll5845c0000gn/T/pip-wheel-ljv1jb3k
cwd: /private/var/folders/gb/5fvn1z1s689bzt7vbll5845c0000gn/T/pip-install-cxwpjegv/cytoolz_88244d2146254468892c582d0b9e33fa/
Complete output (56 lines): [1/5] Cythonizing cytoolz/utils.pyx
[2/5] Cythonizing cytoolz/dicttoolz.pyx [3/5] Cythonizing
cytoolz/functoolz.pyx [4/5] Cythonizing cytoolz/itertoolz.pyx
[5/5] Cythonizing cytoolz/recipes.pyx running bdist_wheel running
build running build_py creating build creating
build/lib.macosx-10.9-universal2-3.10 creating
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/compatibility.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/_version.py -> build/lib.macosx-10.9-universal2-3.10/cytoolz
copying cytoolz/init.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/_signatures.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz creating
build/lib.macosx-10.9-universal2-3.10/cytoolz/curried copying
cytoolz/curried/operator.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/curried copying
cytoolz/curried/init.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/curried copying
cytoolz/curried/exceptions.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/curried copying
cytoolz/itertoolz.pyx -> build/lib.macosx-10.9-universal2-3.10/cytoolz
copying cytoolz/dicttoolz.pyx ->
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/functoolz.pyx -> build/lib.macosx-10.9-universal2-3.10/cytoolz
copying cytoolz/recipes.pyx ->
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/utils.pyx -> build/lib.macosx-10.9-universal2-3.10/cytoolz
copying cytoolz/utils.pxd ->
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/init.pxd -> build/lib.macosx-10.9-universal2-3.10/cytoolz
copying cytoolz/recipes.pxd ->
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/functoolz.pxd -> build/lib.macosx-10.9-universal2-3.10/cytoolz
copying cytoolz/dicttoolz.pxd ->
build/lib.macosx-10.9-universal2-3.10/cytoolz copying
cytoolz/cpython.pxd -> build/lib.macosx-10.9-universal2-3.10/cytoolz
copying cytoolz/itertoolz.pxd ->
build/lib.macosx-10.9-universal2-3.10/cytoolz creating
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_none_safe.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_utils.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_curried.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_compatibility.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_embedded_sigs.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_functoolz.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_inspect_args.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_doctests.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_tlz.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_signatures.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/dev_skip_test.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_recipes.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_docstrings.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_dev_skip_test.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_dicttoolz.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_serialization.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_curried_toolzlike.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests copying
cytoolz/tests/test_itertoolz.py ->
build/lib.macosx-10.9-universal2-3.10/cytoolz/tests running
build_ext creating build/temp.macosx-10.9-universal2-3.10 creating
build/temp.macosx-10.9-universal2-3.10/cytoolz clang
-Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch arm64 -arch x86_64 -g -I/Library/Frameworks/Python.framework/Versions/3.10/include/python3.10
-c cytoolz/dicttoolz.c -o build/temp.macosx-10.9-universal2-3.10/cytoolz/dicttoolz.o xcrun:
error: invalid active developer path
(/Library/Developer/CommandLineTools), missing xcrun at:
/Library/Developer/CommandLineTools/usr/bin/xcrun error: command
'/usr/bin/clang' failed with exit code 1
---------------------------------------- ERROR: Failed building wheel for cytoolz
I have tried to update wheel, installing with sudo, and nothing worked so far,
would love for some help,
thanks

Solution was to install xcode tools using
xcode-select --install

unable to install awscli using pip on dind 18.09.6-dind due to cython dependency

I saw a strange issue just most of yesterday where while running a simple jenkins build that uses pod template with container docker:18.09.6-dind (alpine linux) the build would fail while trying to install awscli using pip. Here is the sample code:-
apk add curl
apk add py-pip
pip install --user awscli
The error was :-
apk add py-pip
(1/11) Installing libbz2 (1.0.6-r7)
(2/11) Installing expat (2.2.8-r0)
(3/11) Installing libffi (3.2.1-r6)
(4/11) Installing gdbm (1.13-r1)
(5/11) Installing ncurses-terminfo-base (6.1_p20190518-r2)
(6/11) Installing ncurses-libs (6.1_p20190518-r2)
(7/11) Installing readline (8.0.0-r0)
(8/11) Installing sqlite-libs (3.28.0-r3)
(9/11) Installing python2 (2.7.18-r0)
(10/11) Installing py-setuptools (40.8.0-r1)
(11/11) Installing py2-pip (18.1-r0)
Executing busybox-1.30.1-r2.trigger
OK: 74 MiB in 54 packages
[Pipeline] withAwsCli
Executing sh script inside container dind of pod pod-custom-w741q
Executing command: "pip" "--version"
exit
pip 18.1 from /usr/lib/python2.7/site-packages/pip (python 2.7)
Executing sh script inside container dind of pod pod-custom-w741q
Executing command: "pip" "show" "awscli"
exit
ERROR: [withAwsCli] Command 'pip show awscli' returned the code 1
Executing sh script inside container dind of pod pod-custom-w741q
Executing command: "pip" "install" "--user" "awscli"
exit
Collecting awscli
Downloading https://files.pythonhosted.org/packages/d9/d3/1b76aa71fea8438f82a991ad94443d343836848f8b8c0dc413ed987745f8/awscli-1.19.51-py2.py3-none-any.whl (3.6MB)
Collecting botocore==1.20.51 (from awscli)
Downloading https://files.pythonhosted.org/packages/3c/1d/7a3741f17a10cc599bb3728351992b10094328ee07b8a129250ba2039642/botocore-1.20.51-py2.py3-none-any.whl (7.4MB)
Collecting colorama<0.4.4,>=0.2.5 (from awscli)
Downloading https://files.pythonhosted.org/packages/c9/dc/45cdef1b4d119eb96316b3117e6d5708a08029992b2fee2c143c7a0a5cc5/colorama-0.4.3-py2.py3-none-any.whl
Collecting PyYAML<5.5,>=3.10 (from awscli)
Downloading https://files.pythonhosted.org/packages/a0/a4/d63f2d7597e1a4b55aa3b4d6c5b029991d3b824b5bd331af8d4ab1ed687d/PyYAML-5.4.1.tar.gz (175kB)
Installing build dependencies: started
Installing build dependencies: finished with status 'error'
Complete output from command /usr/bin/python2 -m pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-mT9r0n --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools wheel Cython:
Collecting setuptools
Downloading https://files.pythonhosted.org/packages/e1/b7/182161210a13158cd3ccc41ee19aadef54496b74f2817cc147006ec932b4/setuptools-44.1.1-py2.py3-none-any.whl (583kB)
Collecting wheel
Downloading https://files.pythonhosted.org/packages/65/63/39d04c74222770ed1589c0eaba06c05891801219272420b40311cd60c880/wheel-0.36.2-py2.py3-none-any.whl
Collecting Cython
Downloading https://files.pythonhosted.org/packages/d9/cd/0d2d90b27219c07f68f1c25bcc7b02dd27639d2180add9d4b73e70945869/Cython-0.29.23.tar.gz (2.1MB)
Installing collected packages: setuptools, wheel, Cython
Running setup.py install for Cython: started
Running setup.py install for Cython: finished with status 'error'
Complete output from command /usr/bin/python2 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-72Od1r/Cython/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-Qfbz7l/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-mT9r0n --compile:
Unable to find pgen, not compiling formal grammar.
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
copying cython.py -> build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/Cython
copying Cython/TestUtils.py -> build/lib.linux-x86_64-2.7/Cython
copying Cython/Utils.py -> build/lib.linux-x86_64-2.7/Cython
copying Cython/CodeWriter.py -> build/lib.linux-x86_64-2.7/Cython
copying Cython/Debugging.py -> build/lib.linux-x86_64-2.7/Cython
copying Cython/StringIOTree.py -> build/lib.linux-x86_64-2.7/Cython
copying Cython/__init__.py -> build/lib.linux-x86_64-2.7/Cython
copying Cython/Coverage.py -> build/lib.linux-x86_64-2.7/Cython
copying Cython/Shadow.py -> build/lib.linux-x86_64-2.7/Cython
creating build/lib.linux-x86_64-2.7/Cython/Build
copying Cython/Build/Dependencies.py -> build/lib.linux-x86_64-2.7/Cython/Build
copying Cython/Build/__init__.py -> build/lib.linux-x86_64-2.7/Cython/Build
copying Cython/Build/Distutils.py -> build/lib.linux-x86_64-2.7/Cython/Build
copying Cython/Build/Inline.py -> build/lib.linux-x86_64-2.7/Cython/Build
copying Cython/Build/BuildExecutable.py -> build/lib.linux-x86_64-2.7/Cython/Build
copying Cython/Build/Cythonize.py -> build/lib.linux-x86_64-2.7/Cython/Build
copying Cython/Build/IpythonMagic.py -> build/lib.linux-x86_64-2.7/Cython/Build
creating build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/FlowControl.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Code.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/MemoryView.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Pipeline.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/AnalysedTreeTransforms.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/CythonScope.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/TypeSlots.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Errors.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/FusedNode.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/PyrexTypes.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/AutoDocTransforms.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/UtilityCode.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/StringEncoding.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Version.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/CmdLine.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/UtilNodes.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/ParseTreeTransforms.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Visitor.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/TypeInference.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/__init__.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Options.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/DebugFlags.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Scanning.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/ExprNodes.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Interpreter.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Builtin.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Annotate.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Symtab.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Optimize.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Parsing.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Naming.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/ModuleNode.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/TreeFragment.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Nodes.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Future.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/TreePath.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Main.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/CodeGeneration.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Buffer.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Pythran.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
copying Cython/Compiler/Lexicon.py -> build/lib.linux-x86_64-2.7/Cython/Compiler
creating build/lib.linux-x86_64-2.7/Cython/Runtime
copying Cython/Runtime/__init__.py -> build/lib.linux-x86_64-2.7/Cython/Runtime
creating build/lib.linux-x86_64-2.7/Cython/Distutils
copying Cython/Distutils/old_build_ext.py -> build/lib.linux-x86_64-2.7/Cython/Distutils
copying Cython/Distutils/__init__.py -> build/lib.linux-x86_64-2.7/Cython/Distutils
copying Cython/Distutils/build_ext.py -> build/lib.linux-x86_64-2.7/Cython/Distutils
copying Cython/Distutils/extension.py -> build/lib.linux-x86_64-2.7/Cython/Distutils
creating build/lib.linux-x86_64-2.7/Cython/Debugger
copying Cython/Debugger/DebugWriter.py -> build/lib.linux-x86_64-2.7/Cython/Debugger
copying Cython/Debugger/libpython.py -> build/lib.linux-x86_64-2.7/Cython/Debugger
copying Cython/Debugger/__init__.py -> build/lib.linux-x86_64-2.7/Cython/Debugger
copying Cython/Debugger/Cygdb.py -> build/lib.linux-x86_64-2.7/Cython/Debugger
copying Cython/Debugger/libcython.py -> build/lib.linux-x86_64-2.7/Cython/Debugger
creating build/lib.linux-x86_64-2.7/Cython/Debugger/Tests
......................................
......................................
running build_ext
building 'Cython.Plex.Scanners' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/tmp
creating build/temp.linux-x86_64-2.7/tmp/pip-install-72Od1r
creating build/temp.linux-x86_64-2.7/tmp/pip-install-72Od1r/Cython
creating build/temp.linux-x86_64-2.7/tmp/pip-install-72Od1r/Cython/Cython
creating build/temp.linux-x86_64-2.7/tmp/pip-install-72Od1r/Cython/Cython/Plex
gcc -fno-strict-aliasing -Os -fomit-frame-pointer -g -DNDEBUG -Os -fomit-frame-pointer -g -DTHREAD_STACK_SIZE=0x100000 -fPIC -I/usr/include/python2.7 -c /tmp/pip-install-72Od1r/Cython/Cython/Plex/Scanners.c -o build/temp.linux-x86_64-2.7/tmp/pip-install-72Od1r/Cython/Cython/Plex/Scanners.o
unable to execute 'gcc': No such file or directory
error: command 'gcc' failed with exit status 1
----------------------------------------
Command "/usr/bin/python2 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-72Od1r/Cython/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-Qfbz7l/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-mT9r0n --compile" failed with error code 1 in /tmp/pip-install-72Od1r/Cython/
----------------------------------------
Command "/usr/bin/python2 -m pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-mT9r0n --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- setuptools wheel Cython" failed with error code 1 in None
It always worked fine until yesterday and also works fine now on same dind OS. I have no clue why was it trying to set up dependency cython just yesterday. I see a new version of cython was released yesterday
https://pypi.org/search/?q=cython
Not sure if that played any role
I am not that familiar with how pip works when it tries to install something so would like to understand why it was looking for cython all of a sudden while its the same pip version 18.1 on that dind OS and trying to fetch latest awscli which happened to be released just yesterday 1.19.51 as per
https://github.com/aws/aws-cli/releases
Also yesterday same thing worked just fine all throughout on docker:18.06.1-ce-dind or other dind versions. So something specific to docker:18.09.6-dind and combination of pip 18.1 and awscli 1.19.51.
kindly help me figure out what could have been the issue here.

Found out the root cause which is
https://github.com/aws/aws-cli/issues/6096

Error while installing cryptography using pip

Installation fails in Ubuntu 14.04 while I tried to install cryptography. I have tried to check if their are any special requirements from ubuntu side apart from basic python installation, I have also installed the below requirments.
"libxml2-dev",
"libxslt1-dev",
"lib32z1-dev",
"libffi-dev", #Requirement of cffi
"libssl-dev",
Below is the error which it shows.
Running setup.py install for cryptography
warning: no previously-included files matching 'yacctab.*' found under directory 'tests'
warning: no previously-included files matching 'lextab.*' found under directory 'tests'
warning: no previously-included files matching 'yacctab.*' found under directory 'examples'
warning: no previously-included files matching 'lextab.*' found under directory 'examples'
zip_safe flag not set; analyzing archive contents...
Installed /tmp/pip_build_root/cryptography/pycparser-2.14-py2.7.egg
no previously-included directories found matching 'docs/_build'
warning: no previously-included files matching '*' found under directory 'vectors'
generating cffi module 'build/temp.linux-x86_64-2.7/_padding.c'
generating cffi module 'build/temp.linux-x86_64-2.7/_constant_time.c'
generating cffi module 'build/temp.linux-x86_64-2.7/_openssl.c'
building '_openssl' extension
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/_openssl.c -o build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7/_openssl.o
x86_64-linux-gnu-gcc: internal compiler error: Killed (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 4
Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-VN5hsV-record/install-record.txt --single-version-externally-managed --compile:
warning: no previously-included files matching 'yacctab.*' found under directory 'tests'
warning: no previously-included files matching 'lextab.*' found under directory 'tests'
warning: no previously-included files matching 'yacctab.*' found under directory 'examples'
warning: no previously-included files matching 'lextab.*' found under directory 'examples'
zip_safe flag not set; analyzing archive contents...
Installed /tmp/pip_build_root/cryptography/pycparser-2.14-py2.7.egg
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/exceptions.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/fernet.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/__init__.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/utils.py -> build/lib.linux-x86_64-2.7/cryptography
copying src/cryptography/__about__.py -> build/lib.linux-x86_64-2.7/cryptography
creating build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/extensions.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/oid.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/general_name.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/base.py -> build/lib.linux-x86_64-2.7/cryptography/x509
copying src/cryptography/x509/name.py -> build/lib.linux-x86_64-2.7/cryptography/x509
creating build/lib.linux-x86_64-2.7/cryptography/hazmat
copying src/cryptography/hazmat/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings
copying src/cryptography/hazmat/bindings/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/interfaces.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/multibackend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/cmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/keywrap.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/serialization.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/padding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/constant_time.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/binding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/_conditional.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
copying src/cryptography/hazmat/bindings/commoncrypto/binding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
copying src/cryptography/hazmat/bindings/commoncrypto/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/encode_asn1.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/cmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ciphers.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/rsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/backend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x509.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ec.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/decode_asn1.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/ciphers.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/backend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
copying src/cryptography/hazmat/backends/commoncrypto/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/modes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/base.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/algorithms.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/hkdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/x963kdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/concatkdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/pbkdf2.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/rsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ec.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dh.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/padding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/interfaces
copying src/cryptography/hazmat/primitives/interfaces/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/interfaces
creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/hotp.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/totp.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
running egg_info
writing requirements to src/cryptography.egg-info/requires.txt
writing src/cryptography.egg-info/PKG-INFO
writing top-level names to src/cryptography.egg-info/top_level.txt
writing dependency_links to src/cryptography.egg-info/dependency_links.txt
writing entry points to src/cryptography.egg-info/entry_points.txt
warning: manifest_maker: standard file '-c' not found
reading manifest file 'src/cryptography.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
no previously-included directories found matching 'docs/_build'
warning: no previously-included files matching '*' found under directory 'vectors'
writing manifest file 'src/cryptography.egg-info/SOURCES.txt'
running build_ext
generating cffi module 'build/temp.linux-x86_64-2.7/_padding.c'
creating build/temp.linux-x86_64-2.7
generating cffi module 'build/temp.linux-x86_64-2.7/_constant_time.c'
generating cffi module 'build/temp.linux-x86_64-2.7/_openssl.c'
building '_openssl' extension
creating build/temp.linux-x86_64-2.7/build
creating build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/_openssl.c -o build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7/_openssl.o
x86_64-linux-gnu-gcc: internal compiler error: Killed (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 4
----------------------------------------
Cleaning up...
Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-VN5hsV-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/cryptography
Storing debug log for failure in /root/.pip/pip.log

I found the answer, this error has occurred due because of the low resources on server.
I needed more ram or a bigger swap file for the command to succeed.
Similar Issue: lxml installation error ubuntu 14.04 (internal compiler error)
What I did:
sudo dd if=/dev/zero of=/swapfile bs=1024 count=524288
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
Then pip install cryptography. Worked for me. :)

Problems installing lxml in Ubuntu

Getting the following errors when I do: pip install lxml
You are using pip version 6.0.8, however version 7.1.0 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Collecting lxml
Using cached lxml-3.4.4.tar.gz
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
warnings.warn(msg)
Building lxml version 3.4.4.
Building without Cython.
ERROR: /bin/sh: 1: xslt-config: not found
** make sure the development packages of libxml2 and libxslt are installed **
Using build configuration of libxslt
Installing collected packages: lxml
Running setup.py install for lxml
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
warnings.warn(msg)
Building lxml version 3.4.4.
Building without Cython.
ERROR: /bin/sh: 1: xslt-config: not found
** make sure the development packages of libxml2 and libxslt are installed **
Using build configuration of libxslt
building 'lxml.etree' extension
i686-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/tmp/pip-build-RLyvkw/lxml/src/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-i686-2.7/src/lxml/lxml.etree.o -w
In file included from src/lxml/lxml.etree.c:239:0:
/tmp/pip-build-RLyvkw/lxml/src/lxml/includes/etree_defs.h:14:31: fatal error: libxml/xmlversion.h: No such file or directory
#include "libxml/xmlversion.h"
^
compilation terminated.
error: command 'i686-linux-gnu-gcc' failed with exit status 1
Complete output from command /home/apurva/.virtualenvs/universallogin/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-RLyvkw/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-9WRQzF-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/apurva/.virtualenvs/universallogin/include/site/python2.7:
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
warnings.warn(msg)
Building lxml version 3.4.4.
Building without Cython.
ERROR: /bin/sh: 1: xslt-config: not found
** make sure the development packages of libxml2 and libxslt are installed **
Using build configuration of libxslt
running install
running build
running build_py
creating build
creating build/lib.linux-i686-2.7
creating build/lib.linux-i686-2.7/lxml
copying src/lxml/pyclasslookup.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/doctestcompare.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/sax.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/_elementpath.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/__init__.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/builder.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/ElementInclude.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/cssselect.py -> build/lib.linux-i686-2.7/lxml
copying src/lxml/usedoctest.py -> build/lib.linux-i686-2.7/lxml
creating build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/__init__.py -> build/lib.linux-i686-2.7/lxml/includes
creating build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/soupparser.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/html5parser.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/_setmixin.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/diff.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/formfill.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/_diffcommand.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/ElementSoup.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/__init__.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/builder.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/defs.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/_html5builder.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/usedoctest.py -> build/lib.linux-i686-2.7/lxml/html
copying src/lxml/html/clean.py -> build/lib.linux-i686-2.7/lxml/html
creating build/lib.linux-i686-2.7/lxml/isoschematron
copying src/lxml/isoschematron/__init__.py -> build/lib.linux-i686-2.7/lxml/isoschematron
copying src/lxml/lxml.etree.h -> build/lib.linux-i686-2.7/lxml
copying src/lxml/lxml.etree_api.h -> build/lib.linux-i686-2.7/lxml
copying src/lxml/includes/htmlparser.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/xinclude.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/c14n.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/xpath.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/etreepublic.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/schematron.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/xslt.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/tree.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/config.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/xmlschema.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/xmlerror.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/xmlparser.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/dtdvalid.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/uri.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/relaxng.pxd -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/etree_defs.h -> build/lib.linux-i686-2.7/lxml/includes
copying src/lxml/includes/lxml-version.h -> build/lib.linux-i686-2.7/lxml/includes
creating build/lib.linux-i686-2.7/lxml/isoschematron/resources
creating build/lib.linux-i686-2.7/lxml/isoschematron/resources/rng
copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/rng
creating build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl
copying src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl
copying src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl
creating build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_skeleton_for_xslt1.xsl -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_svrl_for_xslt1.xsl -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.linux-i686-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
running build_ext
building 'lxml.etree' extension
creating build/temp.linux-i686-2.7
creating build/temp.linux-i686-2.7/src
creating build/temp.linux-i686-2.7/src/lxml
i686-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/tmp/pip-build-RLyvkw/lxml/src/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-i686-2.7/src/lxml/lxml.etree.o -w
In file included from src/lxml/lxml.etree.c:239:0:
/tmp/pip-build-RLyvkw/lxml/src/lxml/includes/etree_defs.h:14:31: fatal error: libxml/xmlversion.h: No such file or directory
#include "libxml/xmlversion.h"
^
compilation terminated.
error: command 'i686-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Command "/home/apurva/.virtualenvs/universallogin/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip-build-RLyvkw/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-9WRQzF-record/install-record.txt --single-version-externally-managed --compile --install-headers /home/apurva/.virtualenvs/universallogin/include/site/python2.7" failed with error code 1 in /tmp/pip-build-RLyvkw/lxml
I've already tried this: sudo apt-get install zlib1g-dev
before "pip install" reading this answer: Not able to install lxml verison 3.3.5 in ubuntu
but did not help.
Also, tried installing python-dev, python3-dev, lib-eventdev did not help either.
Also, tried doing this: STATIC_DEPS=true pip install lxml
reading this: http://lxml.de/installation.html
Did not help either!
Will be very grateful if you could suggest something
Thanks in advance.

The output states ** make sure the development packages of libxml2 and libxslt are installed **. Have you done that?
sudo apt-get install libxml2-dev libxslt-dev
Also, is there a particular reason you're install using pip instead of installing the python-lxml package that comes with Ubuntu? Installing your distribution's package should be preferred unless you have a reason to do otherwise.

if you don't need a specific version from PyPI, you can always use the version packaged for Ubuntu.
$ sudo apt-get install python-lxml
... and then allow system site packages in your virtualenv.
update:
for clarification...
pip installs python packages from PyPI by default. However, many python packages are also packaged for Ubuntu and stored in the Ubuntu archives, You can install them via your system package manager (apt-get) instead of using pip. This can be helpful as the Ubuntu packages are compiled already, and will pull in any dependencies they need.
By default, virtualenv creates an isolated python enviornment, so you don't have access to system packages (that you installed using apt-get). However, you can allow system site packages in your virtualenv.
for example, let's install lxml from it's system package, create a virtualenv named "ENV" that allows access to system packages, and then import lxml to verify it works:
$ sudo apt-get install python-lxml
$ virtualenv --system-site-packages ENV
$ source ENV/bin/activate
(ENV)$ python -c "import xml"

lxml installation error ubuntu 14.04 (internal compiler error)

I am having problems with installing lxml. I have tried the solutions of the relative questions in this site and other sites but could not fix the problem. Need some suggestions/solution on this.
I am providing the full log after executing pip install lxml,
Downloading/unpacking lxml
Downloading lxml-3.3.5.tar.gz (3.5MB): 3.5MB downloaded
Running setup.py (path:/tmp/pip_build_root/lxml/setup.py) egg_info for package lxml
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
warnings.warn(msg)
Building lxml version 3.3.5.
Building without Cython.
Using build configuration of libxslt 1.1.28
warning: no previously-included files found matching '*.py'
Installing collected packages: lxml
Running setup.py install for lxml
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
warnings.warn(msg)
Building lxml version 3.3.5.
Building without Cython.
Using build configuration of libxslt 1.1.28
building 'lxml.etree' extension
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libxml2 -I/tmp/pip_build_root/lxml/src/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w
x86_64-linux-gnu-gcc: internal compiler error: Killed (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 4
Complete output from command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-KUq9VD-record/install-record.txt --single-version-externally-managed --compile:
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'bugtrack_url'
warnings.warn(msg)
Building lxml version 3.3.5.
Building without Cython.
Using build configuration of libxslt 1.1.28
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-2.7
creating build/lib.linux-x86_64-2.7/lxml
copying src/lxml/pyclasslookup.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/doctestcompare.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/builder.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/cssselect.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/sax.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/_elementpath.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/ElementInclude.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/__init__.py -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml
creating build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/__init__.py -> build/lib.linux-x86_64-2.7/lxml/includes
creating build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/html5parser.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/ElementSoup.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/builder.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/clean.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/_diffcommand.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/diff.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/_html5builder.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/_setmixin.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/defs.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/formfill.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/soupparser.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/__init__.py -> build/lib.linux-x86_64-2.7/lxml/html
copying src/lxml/html/usedoctest.py -> build/lib.linux-x86_64-2.7/lxml/html
creating build/lib.linux-x86_64-2.7/lxml/isoschematron
copying src/lxml/isoschematron/__init__.py -> build/lib.linux-x86_64-2.7/lxml/isoschematron
copying src/lxml/lxml.etree.h -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/lxml.etree_api.h -> build/lib.linux-x86_64-2.7/lxml
copying src/lxml/includes/config.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/xpath.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/tree.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/dtdvalid.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/xmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/etreepublic.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/xslt.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/schematron.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/uri.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/c14n.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/xinclude.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/xmlschema.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/xmlerror.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/relaxng.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/htmlparser.pxd -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/etree_defs.h -> build/lib.linux-x86_64-2.7/lxml/includes
copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-2.7/lxml/includes
creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources
creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng
copying src/lxml/isoschematron/resources/rng/iso-schematron.rng -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/rng
creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl
copying src/lxml/isoschematron/resources/xsl/RNG2Schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl
copying src/lxml/isoschematron/resources/xsl/XSD2Schtrn.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl
creating build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_skeleton_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_dsdl_include.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_schematron_message.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_svrl_for_xslt1.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/iso_abstract_expand.xsl -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
copying src/lxml/isoschematron/resources/xsl/iso-schematron-xslt1/readme.txt -> build/lib.linux-x86_64-2.7/lxml/isoschematron/resources/xsl/iso-schematron-xslt1
running build_ext
building 'lxml.etree' extension
creating build/temp.linux-x86_64-2.7
creating build/temp.linux-x86_64-2.7/src
creating build/temp.linux-x86_64-2.7/src/lxml
x86_64-linux-gnu-gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/libxml2 -I/tmp/pip_build_root/lxml/src/lxml/includes -I/usr/include/python2.7 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.7/src/lxml/lxml.etree.o -w
x86_64-linux-gnu-gcc: internal compiler error: Killed (program cc1)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.8/README.Bugs> for instructions.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 4
----------------------------------------
Cleaning up...
Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-KUq9VD-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/lxml
Storing debug log for failure in /root/.pip/pip.log
Also, the pip.log file looks like this,
status = self.run(options, args)
File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 283, in run
requirement_set.install(install_options, global_options, root=options.root_path)
File "/usr/lib/python2.7/dist-packages/pip/req.py", line 1435, in install
requirement.install(install_options, global_options, *args, **kwargs)
File "/usr/lib/python2.7/dist-packages/pip/req.py", line 706, in install
cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False)
File "/usr/lib/python2.7/dist-packages/pip/util.py", line 697, in call_subprocess
% (command_desc, proc.returncode, cwd))
InstallationError: Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_root/lxml/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-KUq9VD-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_root/lxml
dmesg | tail command shows output like this,
[1744367.676147] Out of memory: Kill process 25518 (cc1) score 388 or sacrifice child
[1744367.676665] Killed process 25518 (cc1) total-vm:242352kB, anon-rss:200608kB, file-rss:0kB
It's seems like a memory issue. I am taking reference form this question

Possible solution (if you have no ability to increase memory on that machine) is to add swap file.
sudo dd if=/dev/zero of=/swapfile bs=1024 count=524288
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
from https://github.com/pydata/pandas/issues/1880#issuecomment-9920484
This worked for me on smallest digital ocean machine

In this particular case, it has nothing to do with dependencies, it's a memory problem.
I had this problem within a virtualbox VM. My solution was to increase memory allocated to the VM from the default 512Mb to 1024Mb.

Refer to https://stackoverflow.com/a/6504860/261718
Go install some dev packages before pip install lxml
apt-get install libxml2-dev libxslt1-dev python-dev

Using digitalocean smallest machine you can just turn off mysql and apache while compiling using
sudo service apache2 stop
sudo service mysql stop
and after installing lxml turn them on again using this commands with 'start' instead of 'stop'. Works pretty well for me without using swap file

If #Drake answer does not work for you try adding lib1g-dev.
$ sudo apt-get install -y libxml2-dev libxslt1-dev zlib1g-dev

Develop Reference

Python is a programming language that lets you work quickly and integrate systems more effectively.

UnicodeDecodeError when installing python-igraph - python

download source code of igraph in C and install it using below code ./configure && make && sudo make install then install python igraph using pip or from source

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